150404381 has 2 divisors, whose sum is σ = 150404382. Its totient is φ = 150404380.

The previous prime is 150404333. The next prime is 150404431. The reversal of 150404381 is 183404051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114811225 + 35593156 = 10715^2 + 5966^2 .

It is an emirp because it is prime and its reverse (183404051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 150404381 - 2²⁶ = 83295517 is a prime.

It is a super-2 number, since 2×150404381² = 45242955647986322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 150404381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150404311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75202190 + 75202191.

It is an arithmetic number, because the mean of its divisors is an integer number (75202191).

Almost surely, 2^150404381 is an apocalyptic number.

It is an amenable number.

150404381 is a deficient number, since it is larger than the sum of its proper divisors (1).

150404381 is an equidigital number, since it uses as much as digits as its factorization.

150404381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 150404381 is about 12263.9463876845. The cubic root of 150404381 is about 531.8063216538.

The spelling of 150404381 in words is "one hundred fifty million, four hundred four thousand, three hundred eighty-one".