307276145 has 16 divisors (see below), whose sum is σ = 403341120. Its totient is φ = 222868800.

The previous prime is 307276133. The next prime is 307276153. The reversal of 307276145 is 541672703.

It is not a de Polignac number, because 307276145 - 2⁸ = 307275889 is a prime.

It is a super-2 number, since 2×307276145² = 188837258572122050, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13475 + ... + 28215.

It is an arithmetic number, because the mean of its divisors is an integer number (25208820).

Almost surely, 2^307276145 is an apocalyptic number.

It is an amenable number.

307276145 is a deficient number, since it is larger than the sum of its proper divisors (96064975).

307276145 is a wasteful number, since it uses less digits than its factorization.

307276145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15136.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 307276145 is about 17529.2939104803. The cubic root of 307276145 is about 674.8018769243.

The spelling of 307276145 in words is "three hundred seven million, two hundred seventy-six thousand, one hundred forty-five".