1425128737 has 16 divisors (see below), whose sum is σ = 1500456960. Its totient is φ = 1350976000.

The previous prime is 1425128693. The next prime is 1425128743. The reversal of 1425128737 is 7378215241.

It is a cyclic number.

It is not a de Polignac number, because 1425128737 - 2¹⁹ = 1424604449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1425128737.

It is not an unprimeable number, because it can be changed into a prime (1425122737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1761189 + ... + 1761997.

It is an arithmetic number, because the mean of its divisors is an integer number (93778560).

Almost surely, 2^1425128737 is an apocalyptic number.

It is an amenable number.

1425128737 is a deficient number, since it is larger than the sum of its proper divisors (75328223).

1425128737 is a wasteful number, since it uses less digits than its factorization.

1425128737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424.

The product of its digits is 94080, while the sum is 40.

The square root of 1425128737 is about 37750.8773010641. The cubic root of 1425128737 is about 1125.3424437679.

The spelling of 1425128737 in words is "one billion, four hundred twenty-five million, one hundred twenty-eight thousand, seven hundred thirty-seven".