149791965 has 16 divisors (see below), whose sum is σ = 239823936. Its totient is φ = 79836800.

The previous prime is 149791963. The next prime is 149792003. The reversal of 149791965 is 569197941.

It is not a de Polignac number, because 149791965 - 2¹ = 149791963 is a prime.

It is a super-2 number, since 2×149791965² = 44875265557122450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149791963) 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, 34570 + ... + 38660.

It is an arithmetic number, because the mean of its divisors is an integer number (14988996).

Almost surely, 2^149791965 is an apocalyptic number.

149791965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149791965 is a deficient number, since it is larger than the sum of its proper divisors (90031971).

149791965 is a wasteful number, since it uses less digits than its factorization.

149791965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6540.

The product of its digits is 612360, while the sum is 51.

The square root of 149791965 is about 12238.9527738283. The cubic root of 149791965 is about 531.0835374191.

It can be divided in two parts, 14 and 9791965, that added together give a palindrome (9791979).

The spelling of 149791965 in words is "one hundred forty-nine million, seven hundred ninety-one thousand, nine hundred sixty-five".