1062172155 has 32 divisors (see below), whose sum is σ = 1963035648. Its totient is φ = 484697600.

The previous prime is 1062172151. The next prime is 1062172157. The reversal of 1062172155 is 5512712601.

It is not a de Polignac number, because 1062172155 - 2² = 1062172151 is a prime.

It is a super-2 number, since 2×1062172155² = 2256419373714688050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1062172151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186531 + ... + 192140.

It is an arithmetic number, because the mean of its divisors is an integer number (61344864).

Almost surely, 2^1062172155 is an apocalyptic number.

1062172155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1062172155 is a deficient number, since it is larger than the sum of its proper divisors (900863493).

1062172155 is a wasteful number, since it uses less digits than its factorization.

1062172155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378707.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 1062172155 is about 32590.9827252877. The cubic root of 1062172155 is about 1020.3088117245.

Adding to 1062172155 its reverse (5512712601), we get a palindrome (6574884756).

The spelling of 1062172155 in words is "one billion, sixty-two million, one hundred seventy-two thousand, one hundred fifty-five".