151056021 has 8 divisors (see below), whose sum is σ = 202742464. Its totient is φ = 100036800.

The previous prime is 151056011. The next prime is 151056047. The reversal of 151056021 is 120650151.

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

It is not a de Polignac number, because 151056021 - 2²⁵ = 117501589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151056001) 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, 166276 + ... + 167181.

It is an arithmetic number, because the mean of its divisors is an integer number (25342808).

Almost surely, 2^151056021 is an apocalyptic number.

It is an amenable number.

151056021 is a deficient number, since it is larger than the sum of its proper divisors (51686443).

151056021 is a wasteful number, since it uses less digits than its factorization.

151056021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333611.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 151056021 is about 12290.4849782260. The cubic root of 151056021 is about 532.5732474347.

The spelling of 151056021 in words is "one hundred fifty-one million, fifty-six thousand, twenty-one".