150378499 has 4 divisors (see below), whose sum is σ = 150825064. Its totient is φ = 149931936.

The previous prime is 150378493. The next prime is 150378511. The reversal of 150378499 is 994873051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 994873051 = 7043 ⋅141257.

It is a cyclic number.

It is not a de Polignac number, because 150378499 - 2³ = 150378491 is a prime.

It is a super-2 number, since 2×150378499² = 45227385922986002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150378491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222777 + ... + 223450.

It is an arithmetic number, because the mean of its divisors is an integer number (37706266).

Almost surely, 2^150378499 is an apocalyptic number.

150378499 is a deficient number, since it is larger than the sum of its proper divisors (446565).

150378499 is an equidigital number, since it uses as much as digits as its factorization.

150378499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446564.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 150378499 is about 12262.8911354542. The cubic root of 150378499 is about 531.7758150051.

The spelling of 150378499 in words is "one hundred fifty million, three hundred seventy-eight thousand, four hundred ninety-nine".