154397486 has 4 divisors (see below), whose sum is σ = 231596232. Its totient is φ = 77198742.

The previous prime is 154397471. The next prime is 154397489. The reversal of 154397486 is 684793451.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 154397486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154397489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38599370 + ... + 38599373.

It is an arithmetic number, because the mean of its divisors is an integer number (57899058).

Almost surely, 2^154397486 is an apocalyptic number.

154397486 is a deficient number, since it is larger than the sum of its proper divisors (77198746).

154397486 is an equidigital number, since it uses as much as digits as its factorization.

154397486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77198745.

The product of its digits is 725760, while the sum is 47.

The square root of 154397486 is about 12425.6784925412. The cubic root of 154397486 is about 536.4716068155.

The spelling of 154397486 in words is "one hundred fifty-four million, three hundred ninety-seven thousand, four hundred eighty-six".