154217157 has 32 divisors (see below), whose sum is σ = 221429760. Its totient is φ = 95256000.

The previous prime is 154217143. The next prime is 154217159. The reversal of 154217157 is 751712451.

It is not a de Polignac number, because 154217157 - 2¹⁰ = 154216133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154217159) 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, 568932 + ... + 569202.

It is an arithmetic number, because the mean of its divisors is an integer number (6919680).

Almost surely, 2^154217157 is an apocalyptic number.

It is an amenable number.

154217157 is a deficient number, since it is larger than the sum of its proper divisors (67212603).

154217157 is a wasteful number, since it uses less digits than its factorization.

154217157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545.

The product of its digits is 9800, while the sum is 33.

The square root of 154217157 is about 12418.4200685917. The cubic root of 154217157 is about 536.2626675845.

It can be divided in two parts, 15421 and 7157, that added together give a triangular number (22578 = T₂₁₂).

The spelling of 154217157 in words is "one hundred fifty-four million, two hundred seventeen thousand, one hundred fifty-seven".