156541240 has 16 divisors (see below), whose sum is σ = 352217880. Its totient is φ = 62616480.

The previous prime is 156541211. The next prime is 156541249. The reversal of 156541240 is 42145651.

It is a junction number, because it is equal to n+sod(n) for n = 156541199 and 156541208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156541249) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1956726 + ... + 1956805.

Almost surely, 2^156541240 is an apocalyptic number.

156541240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156541240 is an abundant number, since it is smaller than the sum of its proper divisors (195676640).

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

156541240 is a wasteful number, since it uses less digits than its factorization.

156541240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913542 (or 3913538 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 156541240 is about 12511.6441765261. The cubic root of 156541240 is about 538.9431088362.

Adding to 156541240 its reverse (42145651), we get a palindrome (198686891).

The spelling of 156541240 in words is "one hundred fifty-six million, five hundred forty-one thousand, two hundred forty".