1645106337 has 24 divisors (see below), whose sum is σ = 2875481856. Its totient is φ = 884762496.

The previous prime is 1645106327. The next prime is 1645106347. The reversal of 1645106337 is 7336015461.

1645106337 is a `hidden beast` number, since 1 + 6 + 4 + 5 + 10 + 633 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (1645106327) and next prime (1645106347).

It is not a de Polignac number, because 1645106337 - 2⁸ = 1645106081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1645106327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 766953 + ... + 769094.

It is an arithmetic number, because the mean of its divisors is an integer number (119811744).

Almost surely, 2^1645106337 is an apocalyptic number.

1645106337 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1645106337 is a deficient number, since it is larger than the sum of its proper divisors (1230375519).

1645106337 is a wasteful number, since it uses less digits than its factorization.

1645106337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536077 (or 1536074 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 1645106337 is about 40559.9104658775. The cubic root of 1645106337 is about 1180.4963766776.

The spelling of 1645106337 in words is "one billion, six hundred forty-five million, one hundred six thousand, three hundred thirty-seven".