150778881 has 16 divisors (see below), whose sum is σ = 243683520. Its totient is φ = 91380960.

The previous prime is 150778871. The next prime is 150778883. The reversal of 150778881 is 188877051.

It is not a de Polignac number, because 150778881 - 2⁷ = 150778753 is a prime.

It is a super-2 number, since 2×150778881² = 45468541911224322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (150778883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253540 + ... + 254133.

It is an arithmetic number, because the mean of its divisors is an integer number (15230220).

Almost surely, 2^150778881 is an apocalyptic number.

150778881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

150778881 is a deficient number, since it is larger than the sum of its proper divisors (92904639).

150778881 is a wasteful number, since it uses less digits than its factorization.

150778881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507693 (or 507687 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 45.

The square root of 150778881 is about 12279.2052267238. The cubic root of 150778881 is about 532.2473469162.

The spelling of 150778881 in words is "one hundred fifty million, seven hundred seventy-eight thousand, eight hundred eighty-one".