1400129 has 8 divisors (see below), whose sum is σ = 1500000. Its totient is φ = 1302912.

The previous prime is 1400107. The next prime is 1400131. The reversal of 1400129 is 9210041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1400129 - 2¹² = 1396033 is a prime.

It is a super-2 number, since 2×1400129² = 3920722433282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400159) 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, 497 + ... + 1745.

It is an arithmetic number, because the mean of its divisors is an integer number (187500).

2^1400129 is an apocalyptic number.

1400129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1400129 is a deficient number, since it is larger than the sum of its proper divisors (99871).

1400129 is a wasteful number, since it uses less digits than its factorization.

1400129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1400129 is about 1183.2704678137. The cubic root of 1400129 is about 111.8723300758.

The spelling of 1400129 in words is "one million, four hundred thousand, one hundred twenty-nine".