70840151 has 4 divisors (see below), whose sum is σ = 74568600. Its totient is φ = 67111704.

The previous prime is 70840141. The next prime is 70840157. The reversal of 70840151 is 15104807.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15104807 = 227 ⋅66541.

It is a cyclic number.

It is not a de Polignac number, because 70840151 - 2²² = 66645847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70840151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70840157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1864196 + ... + 1864233.

It is an arithmetic number, because the mean of its divisors is an integer number (18642150).

Almost surely, 2^70840151 is an apocalyptic number.

70840151 is a deficient number, since it is larger than the sum of its proper divisors (3728449).

70840151 is a wasteful number, since it uses less digits than its factorization.

70840151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3728448.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 70840151 is about 8416.6591353102. The cubic root of 70840151 is about 413.7707876486.

Adding to 70840151 its reverse (15104807), we get a palindrome (85944958).

The spelling of 70840151 in words is "seventy million, eight hundred forty thousand, one hundred fifty-one".