150787381 has 12 divisors (see below), whose sum is σ = 155593792. Its totient is φ = 146124000.

The previous prime is 150787367. The next prime is 150787387. The reversal of 150787381 is 183787051.

It is a happy number.

It is not a de Polignac number, because 150787381 - 2⁷ = 150787253 is a prime.

It is a super-2 number, since 2×150787381² = 45473668537678322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150787387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 455386 + ... + 455716.

Almost surely, 2^150787381 is an apocalyptic number.

It is an amenable number.

150787381 is a deficient number, since it is larger than the sum of its proper divisors (4806411).

150787381 is an equidigital number, since it uses as much as digits as its factorization.

150787381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 40.

The square root of 150787381 is about 12279.5513354520. The cubic root of 150787381 is about 532.2573483554.

It can be divided in two parts, 1507 and 87381, that added together give a palindrome (88888).

The spelling of 150787381 in words is "one hundred fifty million, seven hundred eighty-seven thousand, three hundred eighty-one".