151681145 has 16 divisors (see below), whose sum is σ = 226931328. Its totient is φ = 94554240.

The previous prime is 151681129. The next prime is 151681147. The reversal of 151681145 is 541186151.

151681145 = T₂₀₂ + T₂₀₃ + ... + T₉₇₁.

It is not a de Polignac number, because 151681145 - 2⁴ = 151681129 is a prime.

It is a super-2 number, since 2×151681145² = 46014339497022050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151681147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196604 + ... + 197373.

It is an arithmetic number, because the mean of its divisors is an integer number (14183208).

Almost surely, 2^151681145 is an apocalyptic number.

It is an amenable number.

151681145 is a deficient number, since it is larger than the sum of its proper divisors (75250183).

151681145 is a wasteful number, since it uses less digits than its factorization.

151681145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394000.

The product of its digits is 4800, while the sum is 32.

The square root of 151681145 is about 12315.8899394238. The cubic root of 151681145 is about 533.3068960420.

The spelling of 151681145 in words is "one hundred fifty-one million, six hundred eighty-one thousand, one hundred forty-five".