156490542 has 192 divisors, whose sum is σ = 422682624. Its totient is φ = 42923520.

The previous prime is 156490531. The next prime is 156490549. The reversal of 156490542 is 245094651.

156490542 is a `hidden beast` number, since 1 + 5 + 649 + 0 + 5 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 156490497 and 156490506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156490549) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3329563 + ... + 3329609.

It is an arithmetic number, because the mean of its divisors is an integer number (2201472).

Almost surely, 2^156490542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156490542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211341312).

156490542 is an abundant number, since it is smaller than the sum of its proper divisors (266192082).

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

156490542 is a wasteful number, since it uses less digits than its factorization.

156490542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 156490542 is about 12509.6179797786. The cubic root of 156490542 is about 538.8849212133.

The spelling of 156490542 in words is "one hundred fifty-six million, four hundred ninety thousand, five hundred forty-two".