151540236 has 18 divisors (see below), whose sum is σ = 383060132. Its totient is φ = 50513400.

The previous prime is 151540229. The next prime is 151540237. The reversal of 151540236 is 632045151.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (151540237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2104690 + ... + 2104761.

Almost surely, 2^151540236 is an apocalyptic number.

It is an amenable number.

151540236 is an abundant number, since it is smaller than the sum of its proper divisors (231519896).

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

151540236 is a wasteful number, since it uses less digits than its factorization.

151540236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4209461 (or 4209456 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 151540236 is about 12310.1679923549. The cubic root of 151540236 is about 533.1417007706.

Adding to 151540236 its reverse (632045151), we get a palindrome (783585387).

The spelling of 151540236 in words is "one hundred fifty-one million, five hundred forty thousand, two hundred thirty-six".