20151146235 has 32 divisors (see below), whose sum is σ = 35260738560. Its totient is φ = 9745856000.

The previous prime is 20151146233. The next prime is 20151146303. The reversal of 20151146235 is 53264115102.

It is not a de Polignac number, because 20151146235 - 2¹ = 20151146233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20151146233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86115 + ... + 218444.

It is an arithmetic number, because the mean of its divisors is an integer number (1101898080).

Almost surely, 2^20151146235 is an apocalyptic number.

20151146235 is a deficient number, since it is larger than the sum of its proper divisors (15109592325).

20151146235 is a wasteful number, since it uses less digits than its factorization.

20151146235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304979.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 20151146235 in words is "twenty billion, one hundred fifty-one million, one hundred forty-six thousand, two hundred thirty-five".