1401022129 has 4 divisors (see below), whose sum is σ = 1508793076. Its totient is φ = 1293251184.

The previous prime is 1401022123. The next prime is 1401022157. The reversal of 1401022129 is 9212201041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 932386225 + 468635904 = 30535^2 + 21648^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401022129 - 2³ = 1401022121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401022121) 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, 53885454 + ... + 53885479.

It is an arithmetic number, because the mean of its divisors is an integer number (377198269).

Almost surely, 2^1401022129 is an apocalyptic number.

It is an amenable number.

1401022129 is a deficient number, since it is larger than the sum of its proper divisors (107770947).

1401022129 is a wasteful number, since it uses less digits than its factorization.

1401022129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107770946.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1401022129 is about 37430.2301489050. The cubic root of 1401022129 is about 1118.9611245217.

The spelling of 1401022129 in words is "one billion, four hundred one million, twenty-two thousand, one hundred twenty-nine".