42015157 has 2 divisors, whose sum is σ = 42015158. Its totient is φ = 42015156.

The previous prime is 42015151. The next prime is 42015163. The reversal of 42015157 is 75151024.

It is a balanced prime because it is at equal distance from previous prime (42015151) and next prime (42015163).

It can be written as a sum of positive squares in only one way, i.e., 38825361 + 3189796 = 6231^2 + 1786^2 .

It is a cyclic number.

It is not a de Polignac number, because 42015157 - 2¹¹ = 42013109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42015151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21007578 + 21007579.

It is an arithmetic number, because the mean of its divisors is an integer number (21007579).

Almost surely, 2^42015157 is an apocalyptic number.

It is an amenable number.

42015157 is a deficient number, since it is larger than the sum of its proper divisors (1).

42015157 is an equidigital number, since it uses as much as digits as its factorization.

42015157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 42015157 is about 6481.9099808621. The cubic root of 42015157 is about 347.6444738532.

The spelling of 42015157 in words is "forty-two million, fifteen thousand, one hundred fifty-seven".