1465061381 has 4 divisors (see below), whose sum is σ = 1674355872. Its totient is φ = 1255766892.

The previous prime is 1465061363. The next prime is 1465061387. The reversal of 1465061381 is 1831605641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1465061381 - 2²² = 1460867077 is a prime.

It is a super-2 number, since 2×1465061381² = 4292809700195254322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1465061387) 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, 104647235 + ... + 104647248.

It is an arithmetic number, because the mean of its divisors is an integer number (418588968).

Almost surely, 2^1465061381 is an apocalyptic number.

It is an amenable number.

1465061381 is a deficient number, since it is larger than the sum of its proper divisors (209294491).

1465061381 is an equidigital number, since it uses as much as digits as its factorization.

1465061381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209294490.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1465061381 is about 38276.1202448733. The cubic root of 1465061381 is about 1135.7566111869.

The spelling of 1465061381 in words is "one billion, four hundred sixty-five million, sixty-one thousand, three hundred eighty-one".