151240540 has 24 divisors (see below), whose sum is σ = 346478832. Its totient is φ = 54996480.

The previous prime is 151240519. The next prime is 151240547. The reversal of 151240540 is 45042151.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151240547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343509 + ... + 343948.

It is an arithmetic number, because the mean of its divisors is an integer number (14436618).

Almost surely, 2^151240540 is an apocalyptic number.

151240540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151240540 is an abundant number, since it is smaller than the sum of its proper divisors (195238292).

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

151240540 is a wasteful number, since it uses less digits than its factorization.

151240540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687477 (or 687475 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 151240540 is about 12297.9892665427. The cubic root of 151240540 is about 532.7900100557.

Adding to 151240540 its reverse (45042151), we get a palindrome (196282691).

The spelling of 151240540 in words is "one hundred fifty-one million, two hundred forty thousand, five hundred forty".