1345525501 has 4 divisors (see below), whose sum is σ = 1348915132. Its totient is φ = 1342135872.

The previous prime is 1345525483. The next prime is 1345525529. The reversal of 1345525501 is 1055255431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1055255431 = 1093 ⋅965467.

It can be written as a sum of positive squares in 2 ways, for example, as 802588900 + 542936601 = 28330^2 + 23301^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345525501 - 2⁹ = 1345524989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345525301) 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, 1694220 + ... + 1695013.

It is an arithmetic number, because the mean of its divisors is an integer number (337228783).

Almost surely, 2^1345525501 is an apocalyptic number.

It is an amenable number.

1345525501 is a deficient number, since it is larger than the sum of its proper divisors (3389631).

1345525501 is an equidigital number, since it uses as much as digits as its factorization.

1345525501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389630.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 1345525501 is about 36681.4053847450. The cubic root of 1345525501 is about 1103.9870465666.

The spelling of 1345525501 in words is "one billion, three hundred forty-five million, five hundred twenty-five thousand, five hundred one".