154213697 has 4 divisors (see below), whose sum is σ = 168233136. Its totient is φ = 140194260.

The previous prime is 154213667. The next prime is 154213711. The reversal of 154213697 is 796312451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 154213697 - 2¹⁰ = 154212673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154213697.

It is not an unprimeable number, because it can be changed into a prime (154213637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7009703 + ... + 7009724.

It is an arithmetic number, because the mean of its divisors is an integer number (42058284).

Almost surely, 2^154213697 is an apocalyptic number.

It is an amenable number.

154213697 is a deficient number, since it is larger than the sum of its proper divisors (14019439).

154213697 is a wasteful number, since it uses less digits than its factorization.

154213697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14019438.

The product of its digits is 45360, while the sum is 38.

The square root of 154213697 is about 12418.2807586236. The cubic root of 154213697 is about 536.2586570435.

The spelling of 154213697 in words is "one hundred fifty-four million, two hundred thirteen thousand, six hundred ninety-seven".