1345157604 has 216 divisors, whose sum is σ = 4178149248. Its totient is φ = 377213760.

The previous prime is 1345157591. The next prime is 1345157609. The reversal of 1345157604 is 4067515431.

1345157604 is a `hidden beast` number, since 1 + 3 + 45 + 1 + 5 + 7 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1345157609) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2905077 + ... + 2905539.

Almost surely, 2^1345157604 is an apocalyptic number.

1345157604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1345157604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2089074624).

1345157604 is an abundant number, since it is smaller than the sum of its proper divisors (2832991644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1345157604 is a wasteful number, since it uses less digits than its factorization.

1345157604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 1345157604 is about 36676.3902803970. The cubic root of 1345157604 is about 1103.8864190806.

The spelling of 1345157604 in words is "one billion, three hundred forty-five million, one hundred fifty-seven thousand, six hundred four".