154013402 has 4 divisors (see below), whose sum is σ = 231020106. Its totient is φ = 77006700.

The previous prime is 154013393. The next prime is 154013459. The reversal of 154013402 is 204310451.

154013402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204310451 = 59 ⋅3462889.

It can be written as a sum of positive squares in only one way, i.e., 84474481 + 69538921 = 9191^2 + 8339^2 .

It is a super-2 number, since 2×154013402² = 47440255991227208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38503349 + ... + 38503352.

Almost surely, 2^154013402 is an apocalyptic number.

154013402 is a deficient number, since it is larger than the sum of its proper divisors (77006704).

154013402 is an equidigital number, since it uses as much as digits as its factorization.

154013402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77006703.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 154013402 is about 12410.2136162114. The cubic root of 154013402 is about 536.0263896007.

Adding to 154013402 its reverse (204310451), we get a palindrome (358323853).

The spelling of 154013402 in words is "one hundred fifty-four million, thirteen thousand, four hundred two".