151505121 has 8 divisors (see below), whose sum is σ = 207466624. Its totient is φ = 98273520.

The previous prime is 151505093. The next prime is 151505131. The reversal of 151505121 is 121505151.

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

It is not a de Polignac number, because 151505121 - 2¹⁴ = 151488737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (151505131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682345 + ... + 682566.

It is an arithmetic number, because the mean of its divisors is an integer number (25933328).

Almost surely, 2^151505121 is an apocalyptic number.

It is an amenable number.

151505121 is a deficient number, since it is larger than the sum of its proper divisors (55961503).

151505121 is a wasteful number, since it uses less digits than its factorization.

151505121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364951.

The product of its (nonzero) digits is 250, while the sum is 21.

The square root of 151505121 is about 12308.7416497382. The cubic root of 151505121 is about 533.1005176113.

The spelling of 151505121 in words is "one hundred fifty-one million, five hundred five thousand, one hundred twenty-one".