151401780 has 144 divisors (see below), whose sum is σ = 478033920. Its totient is φ = 38755584.

The previous prime is 151401751. The next prime is 151401791. The reversal of 151401780 is 87104151.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 845731 + ... + 845909.

It is an arithmetic number, because the mean of its divisors is an integer number (3319680).

Almost surely, 2^151401780 is an apocalyptic number.

151401780 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 151401780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239016960).

151401780 is an abundant number, since it is smaller than the sum of its proper divisors (326632140).

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

151401780 is a wasteful number, since it uses less digits than its factorization.

151401780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 151401780 is about 12304.5430634380. The cubic root of 151401780 is about 532.9792815088.

The spelling of 151401780 in words is "one hundred fifty-one million, four hundred one thousand, seven hundred eighty".