1025154 has 36 divisors (see below), whose sum is σ = 2412306. Its totient is φ = 314496.

The previous prime is 1025153. The next prime is 1025161. The reversal of 1025154 is 4515201.

1025154 = T₁₇₂ + T₁₇₃ + ... + T₂₂₃.

It can be written as a sum of positive squares in 3 ways, for example, as 393129 + 632025 = 627^2 + 795^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025153) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2874 + ... + 3210.

2^1025154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1206153).

1025154 is an abundant number, since it is smaller than the sum of its proper divisors (1387152).

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

1025154 is a wasteful number, since it uses less digits than its factorization.

1025154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1025154 is about 1012.4988888883. The cubic root of 1025154 is about 100.8315330295.

1025154 divided by its sum of digits (18) gives a triangular number (56953 = T₃₃₇).

The spelling of 1025154 in words is "one million, twenty-five thousand, one hundred fifty-four".