2134157645 has 32 divisors (see below), whose sum is σ = 2807239680. Its totient is φ = 1550545920.

The previous prime is 2134157621. The next prime is 2134157671. The reversal of 2134157645 is 5467514312.

It is not a de Polignac number, because 2134157645 - 2⁶ = 2134157581 is a prime.

It is a super-3 number, since 3×2134157645³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2134157599 and 2134157608.

It is a congruent number.

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, 1103099 + ... + 1105031.

It is an arithmetic number, because the mean of its divisors is an integer number (87726240).

Almost surely, 2^2134157645 is an apocalyptic number.

It is an amenable number.

2134157645 is a deficient number, since it is larger than the sum of its proper divisors (673082035).

2134157645 is a wasteful number, since it uses less digits than its factorization.

2134157645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405.

The product of its digits is 100800, while the sum is 38.

The square root of 2134157645 is about 46196.9441088910. The cubic root of 2134157645 is about 1287.4849631574.

The spelling of 2134157645 in words is "two billion, one hundred thirty-four million, one hundred fifty-seven thousand, six hundred forty-five".