151439740 has 48 divisors (see below), whose sum is σ = 348364800. Its totient is φ = 55043072.

The previous prime is 151439699. The next prime is 151439789. The reversal of 151439740 is 47934151.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 151439696 and 151439705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2181 + ... + 17539.

It is an arithmetic number, because the mean of its divisors is an integer number (7257600).

Almost surely, 2^151439740 is an apocalyptic number.

151439740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151439740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174182400).

151439740 is an abundant number, since it is smaller than the sum of its proper divisors (196925060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151439740 is a wasteful number, since it uses less digits than its factorization.

151439740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15414 (or 15412 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 151439740 is about 12306.0854864575. The cubic root of 151439740 is about 533.0238212821.

The spelling of 151439740 in words is "one hundred fifty-one million, four hundred thirty-nine thousand, seven hundred forty".