151521245 has 8 divisors (see below), whose sum is σ = 182400984. Its totient is φ = 120833344.

The previous prime is 151521233. The next prime is 151521277. The reversal of 151521245 is 542125151.

It can be written as a sum of positive squares in 4 ways, for example, as 14092516 + 137428729 = 3754^2 + 11723^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151521245 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 46214 + ... + 49383.

It is an arithmetic number, because the mean of its divisors is an integer number (22800123).

Almost surely, 2^151521245 is an apocalyptic number.

It is an amenable number.

151521245 is a deficient number, since it is larger than the sum of its proper divisors (30879739).

151521245 is an equidigital number, since it uses as much as digits as its factorization.

151521245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95919.

The product of its digits is 2000, while the sum is 26.

The square root of 151521245 is about 12309.3966139693. The cubic root of 151521245 is about 533.1194287605.

Adding to 151521245 its reverse (542125151), we get a palindrome (693646396).

The spelling of 151521245 in words is "one hundred fifty-one million, five hundred twenty-one thousand, two hundred forty-five".