150404402 has 4 divisors (see below), whose sum is σ = 225606606. Its totient is φ = 75202200.

The previous prime is 150404381. The next prime is 150404431. The reversal of 150404402 is 204404051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204404051 = 5153 ⋅39667.

It can be written as a sum of positive squares in only one way, i.e., 137147521 + 13256881 = 11711^2 + 3641^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37601099 + ... + 37601102.

Almost surely, 2^150404402 is an apocalyptic number.

150404402 is a deficient number, since it is larger than the sum of its proper divisors (75202204).

150404402 is an equidigital number, since it uses as much as digits as its factorization.

150404402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75202203.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 150404402 is about 12263.9472438526. The cubic root of 150404402 is about 531.8063464047.

Adding to 150404402 its reverse (204404051), we get a palindrome (354808453).

The spelling of 150404402 in words is "one hundred fifty million, four hundred four thousand, four hundred two".