1420351545 has 32 divisors (see below), whose sum is σ = 2411596800. Its totient is φ = 712293824.

The previous prime is 1420351529. The next prime is 1420351553. The reversal of 1420351545 is 5451530241.

It is a cyclic number.

It is not a de Polignac number, because 1420351545 - 2⁴ = 1420351529 is a prime.

It is a super-2 number, since 2×1420351545² = 4034797022767774050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14535 + ... + 55244.

It is an arithmetic number, because the mean of its divisors is an integer number (75362400).

Almost surely, 2^1420351545 is an apocalyptic number.

1420351545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1420351545 is a deficient number, since it is larger than the sum of its proper divisors (991245255).

1420351545 is a wasteful number, since it uses less digits than its factorization.

1420351545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69869.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1420351545 is about 37687.5515920045. The cubic root of 1420351545 is about 1124.0836112728.

Adding to 1420351545 its reverse (5451530241), we get a palindrome (6871881786).

The spelling of 1420351545 in words is "one billion, four hundred twenty million, three hundred fifty-one thousand, five hundred forty-five".