2145554151 has 16 divisors (see below), whose sum is σ = 3083383296. Its totient is φ = 1319232096.

The previous prime is 2145554141. The next prime is 2145554161. The reversal of 2145554151 is 1514555412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2145554141) and next prime (2145554161).

It is not a de Polignac number, because 2145554151 - 2⁹ = 2145553639 is a prime.

It is a super-2 number, since 2×2145554151² = 9206805229746661602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145554111) 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, 25206 + ... + 70188.

It is an arithmetic number, because the mean of its divisors is an integer number (192711456).

Almost surely, 2^2145554151 is an apocalyptic number.

2145554151 is a deficient number, since it is larger than the sum of its proper divisors (937829145).

2145554151 is a wasteful number, since it uses less digits than its factorization.

2145554151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46222.

The product of its digits is 20000, while the sum is 33.

The square root of 2145554151 is about 46320.1268456812. The cubic root of 2145554151 is about 1289.7726400580.

The spelling of 2145554151 in words is "two billion, one hundred forty-five million, five hundred fifty-four thousand, one hundred fifty-one".