35172140 has 24 divisors (see below), whose sum is σ = 74321520. Its totient is φ = 13981248.

The previous prime is 35172107. The next prime is 35172149. The reversal of 35172140 is 4127153.

It is not an unprimeable number, because it can be changed into a prime (35172149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2135 + ... + 8654.

It is an arithmetic number, because the mean of its divisors is an integer number (3096730).

Almost surely, 2^35172140 is an apocalyptic number.

It is an amenable number.

35172140 is an abundant number, since it is smaller than the sum of its proper divisors (39149380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

35172140 is a wasteful number, since it uses less digits than its factorization.

35172140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10961 (or 10959 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 35172140 is about 5930.6104238940. The cubic root of 35172140 is about 327.6420221970.

Adding to 35172140 its reverse (4127153), we get a palindrome (39299293).

The spelling of 35172140 in words is "thirty-five million, one hundred seventy-two thousand, one hundred forty".