140622550 has 12 divisors (see below), whose sum is σ = 261558036. Its totient is φ = 56249000.

The previous prime is 140622539. The next prime is 140622551. The reversal of 140622550 is 55226041.

140622550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140622551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1406176 + ... + 1406275.

It is an arithmetic number, because the mean of its divisors is an integer number (21796503).

Almost surely, 2^140622550 is an apocalyptic number.

140622550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140622550 is a deficient number, since it is larger than the sum of its proper divisors (120935486).

140622550 is a wasteful number, since it uses less digits than its factorization.

140622550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812463 (or 2812458 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 140622550 is about 11858.4379241113. The cubic root of 140622550 is about 520.0179357719.

Adding to 140622550 its reverse (55226041), we get a palindrome (195848591).

The spelling of 140622550 in words is "one hundred forty million, six hundred twenty-two thousand, five hundred fifty".