201520354 has 16 divisors (see below), whose sum is σ = 345744000. Its totient is φ = 86295744.

The previous prime is 201520339. The next prime is 201520379. The reversal of 201520354 is 453025102.

It is a super-2 number, since 2×201520354² = 81220906152570632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14442 + ... + 24730.

It is an arithmetic number, because the mean of its divisors is an integer number (21609000).

Almost surely, 2^201520354 is an apocalyptic number.

201520354 is a deficient number, since it is larger than the sum of its proper divisors (144223646).

201520354 is a wasteful number, since it uses less digits than its factorization.

201520354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11697.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 201520354 is about 14195.7864875462. The cubic root of 201520354 is about 586.2816558875.

Adding to 201520354 its reverse (453025102), we get a palindrome (654545456).

The spelling of 201520354 in words is "two hundred one million, five hundred twenty thousand, three hundred fifty-four".