1344656145 has 16 divisors (see below), whose sum is σ = 2458800000. Its totient is φ = 614699904.

The previous prime is 1344656129. The next prime is 1344656161. The reversal of 1344656145 is 5416564431.

It is an interprime number because it is at equal distance from previous prime (1344656129) and next prime (1344656161).

It is not a de Polignac number, because 1344656145 - 2⁴ = 1344656129 is a prime.

It is a super-2 number, since 2×1344656145² = 3616200296572522050, which contains 22 as substring.

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, 6403020 + ... + 6403229.

It is an arithmetic number, because the mean of its divisors is an integer number (153675000).

Almost surely, 2^1344656145 is an apocalyptic number.

1344656145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1344656145 is a deficient number, since it is larger than the sum of its proper divisors (1114143855).

1344656145 is a wasteful number, since it uses less digits than its factorization.

1344656145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12806264.

The product of its digits is 172800, while the sum is 39.

The square root of 1344656145 is about 36669.5533787910. The cubic root of 1344656145 is about 1103.7492300557.

The spelling of 1344656145 in words is "one billion, three hundred forty-four million, six hundred fifty-six thousand, one hundred forty-five".