154397402 has 8 divisors (see below), whose sum is σ = 231678336. Its totient is φ = 77171292.

The previous prime is 154397393. The next prime is 154397407. The reversal of 154397402 is 204793451.

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

It is not an unprimeable number, because it can be changed into a prime (154397407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5738 + ... + 18485.

It is an arithmetic number, because the mean of its divisors is an integer number (28959792).

Almost surely, 2^154397402 is an apocalyptic number.

154397402 is a deficient number, since it is larger than the sum of its proper divisors (77280934).

154397402 is a wasteful number, since it uses less digits than its factorization.

154397402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27412.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 154397402 is about 12425.6751124436. The cubic root of 154397402 is about 536.4715095263.

The spelling of 154397402 in words is "one hundred fifty-four million, three hundred ninety-seven thousand, four hundred two".