151261121 has 32 divisors (see below), whose sum is σ = 182891520. Its totient is φ = 123494400.

The previous prime is 151261093. The next prime is 151261139. The reversal of 151261121 is 121162151.

It is a cyclic number.

It is not a de Polignac number, because 151261121 - 2¹⁰ = 151260097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151261093 and 151261102.

It is not an unprimeable number, because it can be changed into a prime (151261171) 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, 562175 + ... + 562443.

It is an arithmetic number, because the mean of its divisors is an integer number (5715360).

Almost surely, 2^151261121 is an apocalyptic number.

151261121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

151261121 is a deficient number, since it is larger than the sum of its proper divisors (31630399).

151261121 is a wasteful number, since it uses less digits than its factorization.

151261121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425.

The product of its digits is 120, while the sum is 20.

The square root of 151261121 is about 12298.8260008832. The cubic root of 151261121 is about 532.8141765343.

The spelling of 151261121 in words is "one hundred fifty-one million, two hundred sixty-one thousand, one hundred twenty-one".